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| -rw-r--r-- | cryptography/fernet.py | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/cryptography/fernet.py b/cryptography/fernet.py index abd5e251..32bd35d5 100644 --- a/cryptography/fernet.py +++ b/cryptography/fernet.py @@ -37,15 +37,6 @@ bool Cryptography_constant_time_compare(uint8_t *, size_t, uint8_t *, size_t); _lib = _ffi.verify(""" #include <stdbool.h> - -/* Returns the value of the input with the most-significant-bit copied to all - of the bits. This relies on implementation details of computers with 2's - complement representations of integers, which is not required by the C - standard. */ -static uint8_t Cryptography_DUPLICATE_MSB_TO_ALL(uint8_t a) { - return (uint8_t)((int8_t)(a) >> (sizeof(int8_t) * 8 - 1)); -} - bool Cryptography_constant_time_compare(uint8_t *a, size_t len_a, uint8_t *b, size_t len_b) { size_t i = 0; |